请问高手,用c++如何判断计算机休眠状态????

[0011411]

请问高手,用c++如何判断计算机休眠状态????

[Featured]

能执行必定不是在休眠

[alphapiao]

休眠状态所有程序都不运行.
从休眠唤醒时,驱动会收到消息,不知道应用程序会不会收到.

[Faintsnow]

HANDLE hTimer=NULL;

LRESULT CS4Dlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
// TODO: Add your specialized code here and/or call the base class
switch(message)
{
case WM_POWERBROADCAST:
switch(wParam)
{
case PBT_APMSUSPEND:
hTimer=::CreateWaitableTimer(NULL,TRUE,"WaitForResume");
if(!hTimer)
{
MessageBox("Fail to create waitable timer!");
//break;
}
hTimer=OpenWaitableTimer(TIMER_ALL_ACCESS,TRUE,"WaitForResume");
LARGE_INTEGER liDueTime;
liDueTime.QuadPart=60*1000*1000*(-10);
if(!::SetWaitableTimer(hTimer,&liDueTime,0,NULL,NULL,TRUE))
{
MessageBox("Fail to set waitable timer!");
break;
}

if(SetPower(TRUE,TRUE)==RTN_ERROR)
{
DWORD Er=GetLastError();
CString bfr;
bfr.Format("%d",Er);
MessageBox("Can not suspend!"+bfr);
}
break;
default:
break;
}
break;
}
//default:
//break;
// }

return CDialog::WindowProc(message, wParam, lParam);
}